Use only in the MuPAD Notebook Interface.

Syntax

Description

The angle returned by this function is measured in radians,
not in degrees. For example, the result π represents
an angle of 180o.

arcsin is defined for complex arguments.

Floating-point values are returned for floating-point arguments.
Floating-point intervals are returned for interval arguments. Unevaluated
function calls are returned for most exact arguments.

If the argument is a rational multiple of I,
the result is expressed in terms of hyperbolic functions. See Example 2.

The inverse sine function is multivalued. The MuPAD®arcsin function
returns the value on the main branch. The branch cuts are the real
intervals (- ∞, - 1) and (1,
∞). Thus, arcsin returns
values, such that y = arcsin(x) satisfies for
any finite complex x

The sin function returns explicit values
for arguments that are certain rational multiples of π.
For these values, arcsin returns an appropriate
rational multiple of π on
the main branch. See Example 3.